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https://issues.apache.org/jira/browse/HADOOP-3272?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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lohit vijayarenu updated HADOOP-3272:
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Attachment: HADOOP-3272.patch
Small fix. I saw jmap -histo output and we do not have Block objects comparable
to that of BlockInfo, its much much less.
> Reduce redundant copy of Block object in BlocksMap.map hash map
> ---------------------------------------------------------------
>
> Key: HADOOP-3272
> URL: https://issues.apache.org/jira/browse/HADOOP-3272
> Project: Hadoop Core
> Issue Type: Bug
> Components: dfs
> Environment: All
> Reporter: lohit vijayarenu
> Assignee: lohit vijayarenu
> Fix For: 0.18.0
>
> Attachments: HADOOP-3272.patch
>
>
> Looks like we might have redundant copy of Block object as Key for
> BlocksMap.map hash map. We should restore this to using same object for both
> Key, Value to save space.
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